CVE-2023-46977
CWE-787Published: October 31, 2023· Updated: Jun 17, 2026
Official Description
TOTOLINK LR1200GB V9.1.0u.6619_B20230130 was discovered to contain a stack overflow via the password parameter in the function loginAuth.
Risk Analysis
The TOTOLINK LR1200GB router contains a stack overflow vulnerability in its login authentication process. This critical flaw allows remote, unauthenticated attackers to potentially execute arbitrary code.
No public exploit is currently known for this issue, and it is not in the CISA KEV.
Apply the latest firmware updates provided by TOTOLINK for the LR1200GB device.
Technical Analysis
CVE-2023-46977 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-46977 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts